Linked Life Data

10857576

Source:http://linkedlifedata.com/resource/pubmed/id/10857576

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
9
pubmed:dateCreated
2000-6-27
pubmed:abstractText
Thermal surgery has been shown to be a useful therapeutic option when external ultrasound applicators cannot be used as their beam will not reach the target site. If plane transducers are used, the ultrasound beam has to be rotated in order to generate a sufficiently large volume of necrosis. However, rotating deep-seated interstitial applicators and controlling their shooting direction presents major technical problems. The purpose of this study is to evaluate the feasibility of constructing a cylindrical array with a plane rotating beam for ablating esophageal tumors by interstitial hyperthermia. The feasibility of such an array has been initially evaluated using a plane array (which is easier to make from a technical point of view). This array was made with a new piezoelectric material because its mechanical properties make it ideal for the construction of a cylindrical array in the future. We showed that the beam of each array element is sufficiently divergent and that cross-coupling is small enough to generate a plane wave from a cylindrical array. In addition, power tests and electro-acoustic efficiency measurements demonstrated that the output was sufficient to induce tissue necrosis in the relevant conditions.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0041-624X
pubmed:author
pubmed:issnType
Print
pubmed:volume
37
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
615-21
pubmed:dateRevised
2009-11-11
pubmed:meshHeading
pubmed:year
2000
pubmed:articleTitle
The feasibility of constructing a cylindrical array with a plane rotating beam for interstitial thermal surgery.
pubmed:affiliation
INSERM, Unité 281, Lyon, France. lafon@lyon151.inserm.fr
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't